钼尾矿中非金属矿物的回收利用研究  

RECOVERY OF NON-METALLIC MINERAL IN MOLYBDENUM TAILINGS

作　　者：秦传明 李晓瑜[2] 王漪靖[2] 王彧[2] 宁振茹 黄绍文 王志强 

机构地区：[1]合肥万泉非金属矿科技有限公司,安徽合肥230000 [2]金堆城钼业集团有限公司,陕西华县714102

出　　处：《中国钼业》2016年第3期9-13,共5页China Molybdenum Industry

摘　　要：介绍了陕西某钼尾矿中非金属矿物的回收利用研究及其成果,分析了钼尾矿的矿物组成及嵌布粒度,探索了两种不同的非金属矿物回收工艺流程,其中,石英长石混合物回收试验,通过预先筛分、磁选、分级、两段浮选后,获得产率为36.61%、SiO_2和Fe_2O_3品位分别为91.41%、0.12%的石英长石混合物产品;石英和长石分离试验,采用"无氟有酸"工艺流程,通过预先筛分、磁选、分级、两段浮选后,获得产率为23.2%、SiO_2和Al_2O_3品位分别为96.63%、1.69%的石英产品,产率为8.2%、SiO_2、Al_2O_3和K_2O品位分别为81.41%、9.42%和7.87%的长石产品。工艺流程简单,药剂高效环保,为尾矿综合利用的发展提供了新的思路。Recycling of non-metallic minerals in molybdenum tailings in Shaanxi province was introduced. The mineral composition and dissemination size of molybdenum tailings were analyzed. Two different recovery processes of non-metallic mineral were explored. Among them,in the recovery test of the mixture of quartz and feldspar,products of the mixture of quartz and feldspar were obtained with the yield 36. 61%,SiO_2 91.41% and Fe_2O_3 0.12%through pre-screening,magnetic separation,classification and two-stage flotation. In the separation test of quartz and feldspar,quartz with yield 23.2%,SiO_2 96.63% and Al_2O_3 1.69% and feldspar with yield 8.2%,SiO_2 81. 41%,Al_2O_3 9. 42% and K_2O 7.87% were obtained through pre-screening,magnetic separation,classification and two-stage flotation that used 'acid and fluorine-free'process. This article provides new thinking for the development of comprehensive utilization of tailings because the process is simple and agent is efficient and environmentally friendly.

关 键 词：钼尾矿 浮选 非金属矿 选矿工艺 

分 类 号：TD926.4[矿业工程—选矿]